Write a simple java application that declares Employee class. The program should generate and handle custom exceptions such as a. InvalidEmailAddressException if the address does not contains . and @ b. InvalidTelephoneNumberException if total no of digits > 10.

Program:-

class InvalidIdException extends Exception

{         

            InvalidIdException()

            {

            }

}

class NumberIsNotValidException extends Exception

{

            NumberIsNotValidException()

            {

            }

}

class employee

{

            public static void main(String args[])

            {

                        String id = args[0];

                        String num = args[1];

                        try

                        {

                                    if(id.contains("@") && id.contains("."))       

                                    {

                                                System.out.println("Email Id is correct: "+args[0]);

                                    }

                                    else

                                    {

                                                throw new InvalidIdException();

                                    }

                                   

                                    if(num.length()==10)

                                    {

                                                System.out.println("Mobile Number is correct: "+num);

                                    }

                                    else

                                    {

                                                throw new NumberIsNotValidException();

                                    }

                        }catch(InvalidIdException e)

                        {

                                                System.out.println("Id has wrong format");

                        }

                        catch(NumberIsNotValidException e)

                        {

                                                System.out.println("Please enter correct Number..");

                        }

                                               

            }

}